BENDIX D-2 GOVERNOR Посібник - Сторінка 4

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CLEANING AND INSPECTION

1. Clean all remaining parts in mineral spirits.

2. Inspect body for cracks or other damage. Be particu-

larly careful that all air passages in the body, exhaust

stem, and piston are not obstructed.

3. Check springs for cracks, distortion, or corrosion.

4. Replace all parts which are worn or damaged.

ASSEMBLY

Prior to assembly, lubricate the two lower body bores, all

o-rings and o-ring grooves with lubricant provided. Note: Also

spring guide and adjusting screw (if disassembled).

1. Install o-ring (12) in piston (11). Replace washer (13)

and retaining ring (14) on nonmetallic piston if removed

during disassembly.

2. Drop the inlet/exhaust valve (10) into place at the

bottom of the piston (11).

3. Nonmetallic Piston: Install the inlet/exhaust valve spring

(9) with the small end against the valve, place the retain-

ing ring (15) on top of the large end of the valve spring (9)

[concave side of retaining ring (15) facing away from pis-

ton (11)], press into piston with thumb, making sure ears

of retaining ring (15) are seated into piston (11) as far as

possible.

Note: Do not use a press or hammer to install retaining

ring. Excessive force may damage the piston.

Metallic Piston: Install the inlet/exhaust valve spring

(9) with the small end against the valve. Press the spring

down until the larger coiled end snaps into the recess

inside the piston (11).

4. Install the piston o-rings (8) on the piston (11).

5. Install the exhaust stem spring (6) in the piston (11) with

the large coil end next to the piston.

6. Install the exhaust stem (5) through spring (6) and into

piston (11).

7. Install assembled piston (11) into the governor body (2).

8. If the spring assembly was not disassembled, proceed

to Step 9. If the spring assembly was disassembled,

the following instructions apply: install on the adjusting

screw (4) in this order; lower spring seat (19), spring

guide (18), spring seat (19), pressure setting spring (17),

hex-shaped upper spring seat (16). Screw the upper

spring seat onto the adjusting screw until the distance

from the top of the seat to the bottom of the adjusting

screw head is approximately 1-7/8 inches. Install the

lock nut (3).

9. Install the adjusting screw (4) and spring assembly into

the governor body (2).

10. Install retaining ring (1) making certain that it seats com-

pletely into the groove in the governor body (2).

If cover provided in kit is black rubber, (refer to Figure 2)

install by pushing it onto the adjusting screw.

If cover provided in kit is clear nonmetallic, install o-ring

(20) and screw cover onto the adjusting screw. Tighten

until cover bottoms on governor body. Note: O-ring (20)

is used only on Hi-Temp and waterproof governors. If

cover provided in kit is blue nonmetallic place cover over

one edge of top of governor; with index finger catch knob

on top of cover and pull until cover snaps into place.

Note: Nonmetallic cover should be at room temperature

for ease of assembly. Do not attempt to force cover on

square to the governor body.

11. Install filters (7) in governor body. The head of a pencil

makes a satisfactory installation tool.

INSTALLATION

1. If the governor is compressor-mounted, clean the mount-

ing pad on both the compressor and governor. Clean

connecting line, or lines. Be certain the unloading port

is clear and clean. If the governor is mounted remotely,

it should be positioned so that its exhaust port points

down. It should be mounted higher than the compressor

so that its connecting lines will drain away from the

governor.

2. Install governor.

3. If compressor-mounted type, use the governor mounting

gasket provided.

4. Connect air lines to governor.

5. Perform operating and leakage tests as outlined under

Service Tests section.